1Thomas Jefferson’s Summary Comments on the Peaks of Otter, [before 2 December 1815] (Jefferson Papers)
PEAKS OF OTTER. We are indebted to an obliging friend in Bedford for the following nice...
2Thomas Jefferson’s Labeled Diagrams Related to Calculations of Altitude of the Peaks of Otter, [ca. 10–17 November 1815] (Jefferson Papers)
to obtain the altitude a.b. from 2. stations c. & d. each in the plane of the axis of a mountain...
3Thomas Jefferson’s Field Notes and Calculations of Altitude of the Peaks of Otter, [10–ca. 17 November 1815] (Jefferson Papers)
Field Notes. 1 st operation. 1815. Nov. 10. went on the top of the sharp or South peak of Otter ,...